Notes
Slide Show
Outline
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Summary
  • In-class and after school presentations promote technology careers like optical engineering.
  • Concept tested and refined in schools with students and teachers.
  • Judged a success because of the
    “take-home theme packets.”
  • Lessons may be created from theme packet concepts.
  • Funding allows distribution of the “OPTICS Suitcase” to organizations interested in promoting technical career awareness.
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Objectives
  • Offer an “easy to use” presentation for [optical] engineers to take into the classroom.
  • Use optics as a vehicle to make science and technology interesting and accessible to  people (students, teachers, parents, administrators) in Southern California
  • Work with educators (including after school programs) to create exciting classroom lessons.
  • Work with Southern California Optics Professionals and others to build on the “OPTICS Suitcase.”
  • Secure Southern California funding for increased use and distribution of the “OPTICS Suitcase.”
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“OPTICS Suitcase”
for Middle School Outreach
  • Almost everything fits in a plastic suitcase.
  • Many items are reusable: the heating pad, the slinky, sheets of plastic polarizer material, the glass lens, the set of 7 overhead transparencies, etc.
  • Some items are meant to be given
    away: the Periodic Table of the Elements.
  • 225 “take-home theme packets” are included for ~3, twenty-five student classrooms.  Larger groups can be accommodated with planning.
  • A user guide explains how to do a 40 minute demo.
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Technology Demos to
Catch Their Attention
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Optical Engineers Work with Materials That Reflect or Transmit Light
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Take-Home Fact Sheet
Highlights Optics Experiments
  • Introduces speaker, job, and affiliation.
  • Identifies any technology
    [like optical engineering]
    as a career opportunity.
  • Defines what is important
    for success.
  • Highlights the three experiments which follow in colorful terms.
  • Serves as a take-home reminder of who you were and what you did at school.
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Vivid Demonstrations to
“Create” Color from White Light
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Take-Home Theme Packet #1:
Rainbow Peephole®
  • Light from the flashlight is “redirected” in passing through the plastic peephole to the eye.
  • Where do the colors come from?
  • Do you see a regular pattern?
  • Identify the colors. Are they the same in each spot?
  • Does the pattern change if the flashlight is close or far from the peephole? How?
  • Do you see colors from other people's flashlights, even those far away from you?
  • Do you see colors from the room lights?
  • The regular array of bumps on the plastic peephole's surface allows us to see the color in white light through “diffraction.”
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Night Spectra Quest
  • This night is alive with lights whose spectra are different, intriguing, and beautiful.
  • Help students learn how to tell different light sources apart by equipping them with this combination holographic diffraction grating (spectroscope) and pocket-sized spectra chart.
    • Explore energy spectra from:
      Incandescent light
      Fluorescent light
      Mercury 
      Metal halide
      Sodium 
      Neon
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Light is Like a Vibrating Wave
  • We can make a slinky vibrate like a wave of light.
  • A slinky vibrating in one direction is like “polarized” light.
  • Optical engineers use polarizers to make light vibrate in one direction.





  • Polarizers have a “secret code.”
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Take-Home Theme Packet #2:
Magic Stripes
  • Make a “polariscope” on the overhead projector and throw on some plastic tablewear to get their attention.
  • Where do the colors come from?
  • Make your own polariscope and find the stripes in the plastic foil.
  • Examine the plastic cuvette and fork.
  • What happens if you bend the tines of the fork?
  • Geologists, identify minerals with polarized light microscopes.
  • Civil engineers examine stresses
    inside structures with transparent models and a polariscope.
  • Most lasers are polarized.
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Take-Home Theme Packet #3:
Magic Patch
  • Place the patch on your wrist and perform the “vampire test.”
  • The “Magic Patch” changes color with the heat from your body. The “living dead” give off no heat!
  • Where do the colors come from?
  • Does anyone see a vein or artery?
  • This is an example of “selective reflection” by liquid crystals, painted onto the black paper.
  • Liquid crystal are “ordered,” just like the students across the page.
  • Scientists use liquid crystals to
    build displays for watches and
    computer games.


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Selective Reflection in
Cholesteric Liquid Crystals
  • Within each layer, molecules (students) align with long axes (bodies) parallel to plane of layer.
  • Protruding side groups force molecules in adjacent layers to be displaced, creating a twisted, helical structure.
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For Doctors
A Way to See Beneath the Skin
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The Southern California Commitment